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TWIN LAKES DESIGN FRAMEWORK MANUAL PAGE 4 Plantings Materials: Interior plantings should complement the architecture, define building. entries, and provide seasonal interest. Other functional aspects, such as planting for energy efficiency and utility screening are also required. Landscaping should be intensified around the buildings, especially at entries, and may require .plant materials beyond those listed in this manual. . 4. Boulevard Plantings Location: With berming and major plantings, the Twin Lakes Pkwy Corridor will become the major focal point of the "landscape for the site. Common Name Shade Trees Red Maple Pin Oak American Linden Ornamentals River Birch Red Splendor Crab Spring Snow Crab Evergreen Trees ~ Black Hills Spruce Ponderosa Pine Techny Arborvitae s. Plants for Wetland Areas Plant Materials: In order to create an all season landscape along the corridor, one-half of all plant materials used should be evergreen trees. Shade trees and understory ornamentals should then comprise the other half of the plantings. Also encouraged in the plantings will be masses of perennials at the edge of the right-of-way. Perennials shall have a minimum bed size of 150 square feet. Trees, ornamentals, and evergreen trees for the boulevards should be chosen from the following list: Botanical Name Acer rubrum Quercus palustris TilIa americana Betula nigra Malus 'Red Splendor' Malus 'Spring Snow' Picea g1auca denseta Pinus ponderoaa ThuJa occidentalis 'Techny' Location and Planting Material: Plantinga around 8tormwater poneling areas should provide habitat for wildlife, seasonal interest, and minimize soil erosion. Species planted should be moisture tolerant and be planted in a naturalized setting. Species native to the area 8hould be utilized. Plants suitable for holding 80il on steep banks are alao encouraged. The following plant list suggests many good weiand plants: I.